characterdata: add data getter and setter

Signed-off-by: Francis Bouvier <francis.bouvier@gmail.com>

src/dom/character_data.zig

@@ -1,4 +1,10 @@
+const std = @import("std");
+
+const jsruntime = @import("jsruntime");
+const Case = jsruntime.test_utils.Case;
+const checkCases = jsruntime.test_utils.checkCases;
 const generate = @import("../generate.zig");
+
 const parser = @import("../netsurf.zig");
 
 const Node = @import("node.zig").Node;
@@ -9,6 +15,19 @@ pub const CharacterData = struct {
     pub const Self = parser.CharacterData;
     pub const prototype = *Node;
     pub const mem_guarantied = true;
+
+    // JS funcs
+    // --------
+
+    // Read/Write attributes
+
+    pub fn get_data(self: *parser.CharacterData) []const u8 {
+        return parser.characterDataData(self);
+    }
+
+    pub fn set_data(self: *parser.CharacterData, data: []const u8) void {
+        return parser.characterDataSetData(self, data);
+    }
 };
 
 pub const Types = generate.Tuple(.{
@@ -18,3 +37,25 @@ pub const Types = generate.Tuple(.{
 const Generated = generate.Union.compile(Types);
 pub const Union = Generated._union;
 pub const Tags = Generated._enum;
+
+// Tests
+// -----
+
+pub fn testExecFn(
+    _: std.mem.Allocator,
+    js_env: *jsruntime.Env,
+    comptime _: []jsruntime.API,
+) !void {
+    var get_data = [_]Case{
+        .{ .src = "let cdata_t = document.getElementById('link').firstChild", .ex = "undefined" },
+        .{ .src = "cdata_t.data", .ex = "OK" },
+    };
+    try checkCases(js_env, &get_data);
+
+    var set_data = [_]Case{
+        .{ .src = "cdata_t.data = 'OK modified'", .ex = "OK modified" },
+        .{ .src = "cdata_t.data === 'OK modified'", .ex = "true" },
+        .{ .src = "cdata_t.data = 'OK'", .ex = "OK" },
+    };
+    try checkCases(js_env, &set_data);
+}